E-flite Alpha 450 Sport PNP User Manual
™
Alpha
Assembly Manual
Sport 450 PNP
Specifications
Wingspan: 48.5 in (1230mm)
Length: 40 in (1015mm)
Wing Area: 395 sq in (25.5 sq dm)
Weight w/o Battery: 23–24 oz (650–680 g)
Weight w/Battery: 28–29 oz (790–820 g)
Table of Contents
Introduction
Product Registration
Introduction ........................................................... 2
Important Warranty Information .............................. 2
Using the Manual ................................................... 2
Product Registration................................................ 2
Contents of Kit/Parts Layout .................................... 2
Covering Colors ..................................................... 2
Recommended Radio Equipment ............................. 3
Optional Accessories .............................................. 3
Replacement Propeller ............................................3
Battery Requirements .............................................. 3
Required Tools and Adhesives ................................. 3
Note on Lithium Polymer Batteries ........................... 3
Warning ................................................................ 3
Installing the Main Landing Gear ............................ 4
Installing the Tail Surfaces ....................................... 4
Installing the Receiver ............................................. 6
Installing the Motor Battery ..................................... 7
Centering the Rudder, Nose Gear and Elevator ........ 8
Attaching the Wing and Centering the Ailerons ....... 9
Checking the Control Movements .......................... 12
Checking the Control Throws ................................ 13
Installing the Propeller and Spinner ....................... 15
Center of Gravity ................................................. 18
Range Test Your Radio .......................................... 19
Flying Your Alpha Sport 450 PNP ......................... 19
Age Requirement ................................................. 19
Safety Do’s and Don’ts for Pilots ............................ 19
Daily Flight Checks ............................................... 20
Warranty Information ........................................... 20
CE Compliance Information for the
European Union .............................................. 22
2009 Official Academy of
Model Aeronautics Safety Code ....................... 22
Declaration of Conformity ..................................... 23
The Alpha Sport 450 PNP combines the mild manners
of a high-wing trainer with all the fun of a sport
aerobatic plane, making it the perfect companion for
a few care-free hours at the local park or playground.
Constructed from top-quality balsa and plywood, it
comes out of the box covered in genuine UltraCote.
And assembly takes just an evening or two thanks to
convenient features like the bolt-on tail and installed
control horns.
Important Warranty Information
Please read our Warranty and Liability Limitations
section on Page 20 before building this product. If you
as the Purchaser or user are not prepared to accept the
liability associated with the use of this Product, you are
advised to return this Product immediately in new and
unused condition to the place of purchase.
Using the Manual
This manual is divided into sections to help make
assembly easier to understand, and to provide breaks
between each major section. In addition, check boxes
have been placed next to each step to keep track
of its completion. Steps with a single circle () are
performed once, while steps with two circles ( )
indicate that the step will require repeating, such as for
a right or left wing panel, two servos, etc.
Remember to take your time and follow the directions.
Register your product online at:
www.e-fliterc.com/register/
Contents of Kit/Parts Layout
EFL2826 Wing Set
EFL2827 Fuselage
EFL2828 Tail Set
EFL2829 Wing Tube
EFL2830 Main Gear
EFL2831 Pushrod Set
EFL2832 Fuselage Hatch
EFL2833 Nose Gear
EFL2834 Wheel Set
EFL2835 Hardware Set
Covering Colors
HANU873 Deep Blue
HANU870 White
HANU866 True Red
2 E-flite Alpha Sport 450 PNP Assembly Manual
Recommended Radio Equipment
Replacement Propeller
Note on Lithium Polymer Batteries
You will need a minimum of a 4-channel transmitter
and receiver. You can choose to purchase a complete
radio system. If you are using an existing transmitter,
just purchase the receiver separately. We recommend
the crystal-free, interference-free Spektrum™ DX5e
2.4GHz DSM® 5-channel system.
If you own a Spektrum radio, just add a DSM2
receiver. We show the installation of the AR500
receiver in the manual.
Complete Radio System
SPM5500 DX5e 5-Channel Full Range
w/o Servos
Or Purchase Separately
SPMAR500 AR500 5-Channel Receiver
™
Optional Accessories
EFLA110 Power Meter
EFLC3005 Celectra™ 1- to 3-Cell
Li-Po Charger
EFLC505 Intelligent 1- to 5-Cell
Balancing Charger
EFLSP175 13/4-inch Aluminum Spinner
APC10070E 10x7 Electric Prop
Replacement Electronics
EFLM1400 Park 450 Brushless
Outrunner Motor, 890Kv
EFLA325A 25-Amp Airplane
Brushless ESC
EFLRS75 Sub-Micro S75 Servo
EFLRYH3 3-inch Y-harness, Lightweight
EFLREX3L 3-inch Extension, Lightweight
EFLP1070 10x7 Slow Flyer Propeller
Battery Requirements
EFLB18003S 1800mAh 3S 11.1V 20C Li-Po,
13AWG EC3
or
THP21003SPL2 2100mAh 3S 11.1V 20C Li-Po,
16AWG
Required Tools and Adhesives
Tools & Equipment
Scissors Ruler (EFLA264)
Nut driver: 5.5mm
Hex Wrench or Ball Driver: 3/32-inch, 5/64-inch
Phillips Screwdriver: #0, #1, #2 (EFLA257 and
EFLA258)
Adhesives
Clear tape Threadlock
Optional Tools and Adhesives
Paper towel Epoxy mixing cup
Epoxy mixing stick Epoxy brush
Rubbing alcohol 6-minute Epoxy (HAN8000)
Propeller reamer Drill
Low tack tape
Drill bit: 3/8-inch (9.5mm)
Adjustable wrench or 10mm open-end wrench
Lithium Polymer batteries are significantly
more volatile than alkaline or Ni-Cd/
Ni-MH batteries used in RC applications.
All manufacturer’s instructions and warnings
must be followed closely. Mishandling of
Li-Po batteries can result in fire. Always
follow the manufacturer’s instructions when
disposing of Lithium Polymer batteries.
Warning
An RC aircraft is not a toy! If misused, it can cause
serious bodily harm and damage to property. Fly
only in open areas, preferably at AMA (Academy of
Model Aeronautics) approved flying sites, following all
instructions included with your radio.
Keep loose items that can get entangled in the
propeller away from the prop, including loose clothing,
or other objects such as pencils and screwdrivers.
Especially keep your hands away from the propeller.
During the course of building your model, we suggest
that you use a soft base for the building surface.
Such things as a foam stand, large piece of bedding
foam or a thick bath towel will work well and help
protect the model from damage during assembly.
The Spektrum trademark is used with permission
of Bachmann Industries, Inc.
3E-flite Alpha Sport 450 PNP Assembly Manual
Installing the Main Landing Gear
Required Parts
Fuselage assembly Main landing gear
#4 steel washer (2)
4-40 x 3/8-inch socket head bolt (2)
Required Tools and Adhesives
Hex wrench or ball driver: 3/32-inch
Threadlock
1. Position the main landing gear on the bottom
of the fuselage as shown. The main gear has a
straight side and an angled side. The angled side
goes forward and the straight side aft. Slide a #4
steel washer on the two 4-40 x 3/8-inch socket
head bolts. The bolts go through the landing
gear and the blind nut that is installed inside the
fuselage. The landing gear is secured using two
bolts and washers. Tighten the bolts using a 3/32inch hex wrench or ball driver.
Installing the Tail Surfaces
Required Parts
Fuselage assembly Elevator assembly
Rudder assembly 3mm x 50mm machine bolt
3mm locknut (3) 3mm steel washer (4)
Required Tools and Adhesives
Nut driver: 5.5mm Phillips screwdriver: #1, #2
1. Use a #1 Phillips screwdriver to loosen the
screws that secure the rudder and elevator pushrod
to the connectors at the servo. This will allow you to
move the pushrods without damaging the servos to
install the rudder and elevator assemblies.
3. Rotate the elevator into position, making sure
the pushrod wire for the rudder is on the top
side of the elevator.
2. Insert the bend in the elevator pushrod wire into
the outer hole of the elevator control horn.
Use threadlock on all metal-to-metal fasteners
to keep them from vibrating loose.
4 E-flite Alpha Sport 450 PNP Assembly Manual
4. Slide a 3mm steel washer on the 3mm x 50mm
machine bolt.
4. Insert the 3mm x 50mm machine bolt through
the hole in the stabilizer that is the closest to the
rear of the aircraft. The bolt will pass through the
fuselage through holes that have been previously
made in the fuselage for this purpose.
6. Insert the bend in the rudder pushrod wire into
the outer hole of the rudder control horn.
7. Rotate the rudder into position as shown.
8. Insert the threaded rods from the rudder through
the two forward holes in the stabilizer and into the
holes in the fuselage.
9. Slide the rudder assembly into position, making
sure it is fully seated on the fuselage as shown.
5. Slide a 3mm steel washer on the bolt and then
thread a 3mm locknut on the bolt. Leave the nut
slightly loose at this time.
5E-flite Alpha Sport 450 PNP Assembly Manual
10. Slide two 3mm steel washers on the threaded
rods from the rudder assembly. The rudder
assembly is then secured using two 3mm locknuts.
Use a 5.5mm nut driver and a #2 Phillips
screwdriver to tighten the nuts. Make sure not to
over-tighten the nuts and damage the fuselage.
Installing the Receiver
Required Parts
Fuselage assembly Receiver
Y-harness Hook and loop tape
Required Tools and Adhesives
Scissors Clear tape
1. Plug the leads from the rudder servo, elevator
servo and speed control into the appropriate ports
of the receiver. Plug the Y-harness into the aileron
port of the receiver.
3. Remove the remaining backing from the hook
and loop tape. Position the receiver in the fuselage
as shown.
4. Use clear tape to secure the longer antenna
wire from the receiver under the wing mounting
plate and to the side of the fuselage to keep it from
interfering with the operation of the servos and to
provide the best reception for your radio system.
2. Use scissors to cut a small piece of hook and
loop tape. Remove the backing and apply the hook
and loop to the bottom of the receiver.
6 E-flite Alpha Sport 450 PNP Assembly Manual
Installing the Motor Battery
Required Parts
Fuselage assembly Motor battery (charged)
Hook and loop strap Hook and loop tape
1. Lift up at the rear of the battery hatch and slide
it to the rear of the fuselage to remove. Set the
battery hatch aside to install the motor battery.
2. Slip the hook and loop strap through the holes
in the battery tray as shown. Make sure the softer
loop tape is facing out or you will not be able to
secure the battery with the strap.
3. Take the connector from the speed control for the
battery and insert it though the hole in the battery
tray into the battery compartment.
4. Use the hook and loop strap to secure the
motor battery in the battery compartment. If the
motor battery slides forward or rearward in the
compartment, use a piece of hook and loop tape
between the motor battery and battery tray to keep
it from moving.
When installing the hook and loop strap,
make sure the wire to the nose gear does not
interfere with the strap. The wire must remain
free to move when the strap is installed.
When balancing your model, you will be
required to move the battery forward or
aft to achieve the best CG for flight.
7E-flite Alpha Sport 450 PNP Assembly Manual
Centering the Rudder, Nose
Gear and Elevator
Required Parts
Fuselage assembly Transmitter
Motor battery (charged)
Required Tools and Adhesives
Ruler Phillips screwdriver: #1
Threadlock
1. Use a #1 Phillips screwdriver to loosen the
screws that secure the rudder, nose gear and
elevator pushrod to the connectors at the servo.
3. Make sure the rudder trim and stick have been
centered at the transmitter. Position the nose wheel
so it is aligned with the sides of the fuselage as
shown in the image below. Tighten the screw at
the rudder servo using a #1 Phillips screwdriver to
secure the nose gear pushrod wire to the connector
at the servo.
4. Make sure the rudder trim and stick have been
centered at the transmitter. Use a ruler to make sure
the rudder is aligned with the fin. Tighten the screw
at the rudder servo using a #1 Phillips screwdriver
to secure the rudder pushrod wire to the connector
at the servo.
2. Move the switch on your transmitter to the ON
position. Make sure the throttle stick is toward the
bottom of the transmitter, or low throttle position.
Connect the leads for the battery and motor.
If you find your model does not track straight on
the runway, you may need to re-center the nose
wheel. Do not use the rudder trim to correct a
tracking problem with your aircraft. The rudder
trim is used to trim the model in flight.
8 E-flite Alpha Sport 450 PNP Assembly Manual
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